Double-wall corrugated pipe preparation mold wide in application range and corrugated pipe preparation method

Abstract

The invention discloses a double-wall corrugated pipe preparation mold wide in application range and a corrugated pipe preparation method. The mold comprises two outer molds, an inner mold arranged between the two outer molds, a positioning mechanism and a locking mechanism, wherein the positioning mechanism and the locking mechanism are arranged on the outer molds, the outer mold is semi-cylindrical, a semi-circular bulge is arranged on the inner wall of the outer mold, the inner mold is cylindrical, a mounting groove is formed in the inner wall of the semi-circular bulge, and positioning holes are formed in the outer wall of the inner mold; the positioning mechanism comprises a fixed block fixedly arranged in the mounting groove and an electromagnet fixedly arranged in the positioning hole; the locking mechanism comprises clamping semicircular rings arranged outside the outer molds in a sleeving mode, lead screws movably arranged on the clamping semicircular rings, first supporting plates movably arranged on the lead screws and driving motors fixedly arranged at one end of the lead screws. The preparation method comprises the four steps of raw material treatment, mold closing, injection molding and demolding. The butt joint of the outer dies is more efficient, the fixing mode is flexible, and meanwhile the applicable die size is wider.

Description

technical field [0001] The invention relates to the technical field of double-wall corrugated pipe preparation, in particular to a double-wall corrugated pipe preparation mold and a corrugated pipe preparation method with a wide application range. Background technique [0002] High-density polyethylene double-wall corrugated pipe is a new type of pipe with a ring-shaped outer wall and a smooth inner wall. The corrugated pipe is a common pipe and is widely used in municipal, construction, railway, road communication equipment, industry, agriculture. Gardens, road works. [0003] High-density polyethylene double-wall corrugated pipes have excellent chemical stability, aging resistance and environmental stress cracking resistance. Double-wall corrugated pipes are mainly used in large-scale water transportation with working pressure below 0.6MPa, and minerals are used for drainage, sewage, Ventilation pipes, protective pipes for communication cables and optical cables, sewage p...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a double-wall bellows preparation mold and a bellows preparation method with a wide application range, which can effectively solve the problem that the double-wall bellows preparation mold in the prior art cannot be quickly assembled and the fixation between the inner and outer molds is not enough It is flexible and stable, and its fixing method is relatively rigid. It is suitable for a small range of mold sizes, and the large resistance during demoulding also causes the problem of time-consuming and labor-intensive discharge.

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